Question: A pitcher accelerates a 0.14-kg hardball from rest to 42.5 m/s in 0.060 s. (a) How much work does the pitcher do on the ball?

A pitcher accelerates a 0.14-kg hardball from rest to 42.5 m/s in 0.060 s.
(a) How much work does the pitcher do on the ball?
(b) What is the pitcher's power output during the pitch?
(c) Suppose the ball reaches 42.5 m/s in less than 0.060 s. Is the power produced by the pitcher in this case more than, less than, or the same as the power found in part (b)? Explain.

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